Pipe-end-forming tool



L.J.HAND SEAL PIPE END FIORMING -TOOL Filed oct. 14, 1924 FIG. 5

.F'IG. 1 A

FIG. 2 lo 9l U lINVEN-ropg ATTORNEYS Patented Feb. 16, 1926.

neue srarus LAWRENCE J.k nANnANn HENRY e. PASSE, or DAYTON, onro.`

PIKPE-ENDFORMING TOOL. i

Application filed. october 14, 1924.' Serial No. 743,637.

To ZZ 107mm it muy concern:

Be it known that we, LawnnNcn J. Hann and HENRY G. Passie, citizensofthe United States, residing at Dayton, in the county of lviontgon'ieryand State of Ohio, have invented certain new and useful Improvements inPipe-End-Forming Tools, of Which the following is a speciiication,reference being had therein to the accompanying drawing.

Qur invention relates to a means and method of forming a joint in pipes.

Tt is the obj ct of our invention to provide a rapid and etlicient meansof forming the end of a pipe, particularly a lead pipe, so that it mayberapidly and positively joined to another section of pipe.

lt is a further object to provide the head of the pipe so that thematerial applied to cement the joint may be uniformly arranged betweenthe shoulders on the pipe to insure,

a perfect joint. I

Vllerctofore such work has been done by hand by filing the pipe with aheavy lilo to form a. tapered head on the end of the pipe, but this isnot only expensive, tiresome and slow, but inaccurate. It results in aninsuilicient taper being given to the pipe due to the failure of themaker ofthe joint to provide sufficient shoulder on the pipe so that thecementingagent will have a bearing surface of sufiicient area to insurea perfect joint. Unless such shoulders and bearing surface are providedvvhen the ground in which the pipes are embedded sinks, the pipe willbreak at the joint.

It is an object of our invention to provide a readily portable toolwhich may be either operated by hand, by a brace and may be substitutedfor an ordinary tool or it may be mounted in a machine tool.

It is ay further object of our invention to provide a tool in Which thecutting members may be readily detached for the substitution of newmembers or for the sharpening of old members.

lt is an additional object to provide a reamer in combination with thetool to prevent the accumulation of chipsand to insure a perfectinterior of the pipe. The reamer also has an additional function ofacting as a support or mandrel so that the pipe Will be in properposition with respect to the cutting;` elements.

The detachable feature of the cutting elements has the additionaladvantage of pertlie pipe.

mitting different shaped'cutting elements to be applied for differentsizes of pipes to give different configurations to the ends of thepipes.

.lt is an additional advantage of our invention that instead of the leadwhich is removed from the pipe being yin the form of a line dust, by ourmethod and machine the lead is removed in large chips so that thejchipscan be readily gathered up and sal-l vaged, which is a greateconomy Where a large number of these joints are being made. Referringto the drawings, Figure l is al plan vieu7 ofthe tool;

. Figure 2 is a side elevation ofthe tool; Figure 3 is a front elevationof the tool;

ll1 igurc el is a section of the pipe which is to be worked upon; and

Figure 5 is a view of the pipe With the ends completed and joinedtogether with the joining agent in section.

Referringto the drawings in detail, l is the tapered shank which of thebrace. This shank is formed like an ordinary bit shank. 2 is the shaftof the tool upon whichI is mounted a square tool supporting head 3. Thistool supjfiorting hcad'has its outer portion of cylindrical form adaptedto fit Within the interior of This mandrel portion has a tapered end 5with cutting edges 6 thereon. This constitutes a reamer for trimming theinterior of the pipe particularly at the mouth of the pipe Where a roughedge is to be expected Where the pipe has been severed lits into thejaws from the main portion of the pipe, as such .j lead pipes come 1ncoils of predetermined` length.

On the tool supporting head are the cutting tools which consist of asupporting base 7 att-ached by the bolts 8 to the tool supporting head.This base 7 carries the cutter 9 which has a curved cutting edge 10 anda straight cutting edge 1l spaced from the mandrel 4t. The pipe Wall isslipped over the mandrel beneath the cutter so that it is between thecutter and the mandrel, thus insuring that the pipe is in properposition and will have the exact amount of lead trimmed from the endthereof. This cutting tool is tilt-ed bodily at an angle to thevertical. The cutting surface is tapered up- Wardly as at l2 so that thelead shavings may freely pass away from the tool. lt is this arrangementwhich also results in the i lead being cut from the pipe being in theand as a result of this operation it acquires a head which is of lesseroutside diameter as V at 14. Between the surface 13 and the surface .14is formed a tapered shoulder 15. The head of the pipe istapered as at16until the outer Wall ymeets the inner Wall at 17. The White lead joint18 thus isprovided With a uniform broad bearing support engaging withthe shoulders 16 and 15 to prevent shifting and to brace the head 18.

It will be understood that Wedesire to comprehend Within our inventionsuch modifications as may be necessary to adapt it to varying conditionsof use. Having thus fully described our invent-ion, what We claim as newand desire to secure by Letters Patent, is p A A tool comprising` arectangular head provided with a shank adapted to be received in arotary tool holder, a reamer forming a continuation of the head,substantially L-shaped cutters disposed at di anietrically oppositepoints of.` the reamer, and an att-aching element carried by the shorterlegs, an attaching element formed with the shorter leg of each of theL-zrhaped Cutters and having their end faces attened throughout theirlengths and contacting with the head, fastenings detachably connectingthe attachingV elements with the.

head, the cuttersl being kprovided with continuous cutting edges, themajor part of n the length of such cutting edges being spaced from thereamer and their inner ends extended to the latter.

In testimony whereof we affix our signatures.y

LAVRENCE J. HAND. HENRY Gr. 'PASSEy

